:root {
  --bg: #f5f7f8;
  --surface: #ffffff;
  --surface-2: #eef2f3;
  --text: #15202b;
  --muted: #5b6b78;
  --border: #d9e1e5;
  --primary: #0b7a75;
  --primary-text: #ffffff;
  --ok-bg: #e3f4ea;
  --ok-text: #17603a;
  --warn-bg: #fdf1dc;
  --warn-text: #8a5300;
  --err-bg: #fbe5e5;
  --err-text: #9b1c1c;
  --info-bg: #e4eefb;
  --info-text: #1f4f8f;
  --cold: #2563eb;
  --radius: 10px;
  --shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 1px 3px rgb(16 24 40 / 8%);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1518;
    --surface: #172024;
    --surface-2: #1e2a2f;
    --text: #e6edf0;
    --muted: #93a4ad;
    --border: #2b3a40;
    --primary: #22a39d;
    --primary-text: #04201f;
    --ok-bg: #12301f;
    --ok-text: #7fd8a4;
    --warn-bg: #352610;
    --warn-text: #f3c26b;
    --err-bg: #3a1717;
    --err-text: #f4a3a3;
    --info-bg: #142640;
    --info-text: #9cc2f5;
    --cold: #7aa7ff;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

h1, h2, h3 { margin: 0 0 0.5rem; line-height: 1.25; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1.1rem; }
h3 { font-size: 0.95rem; }
p { margin: 0 0 0.75rem; }
small { display: block; color: var(--muted); font-size: 0.8rem; }
.muted { color: var(--muted); }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 6px;
  background: var(--primary);
  color: var(--primary-text);
  font-weight: 800;
}

.tabs { display: flex; gap: 0.25rem; overflow-x: auto; max-width: 100%; }
.tabs a {
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}
.tabs a[aria-current="page"] { background: var(--surface-2); color: var(--text); }

main { max-width: 1180px; margin: 0 auto; padding: 1.25rem 1rem 3rem; }
@media (max-width: 600px) { .card { padding: 1rem; } .tabs a { padding: 0.4rem 0.6rem; } }

.grid { display: grid; gap: 1.25rem; grid-template-columns: minmax(0, 420px) minmax(0, 1fr); align-items: start; }
@media (max-width: 900px) { .grid { grid-template-columns: minmax(0, 1fr); } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  min-width: 0;
}
.card.narrow { max-width: 720px; }
.card-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 0.5rem 1rem; margin-bottom: 0.5rem; }
.card-head h1 { margin: 0; }

fieldset { border: 0; padding: 0; margin: 0 0 1.25rem; }
legend { font-weight: 700; margin-bottom: 0.5rem; padding: 0; }

label { display: grid; gap: 0.3rem; font-size: 0.85rem; font-weight: 600; color: var(--muted); }
select, input[type="number"], input[type="datetime-local"] {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.6rem;
}
select:focus, input:focus { outline: 2px solid var(--primary); outline-offset: 1px; }

.line { display: grid; grid-template-columns: minmax(0, 1fr) 96px 36px; gap: 0.5rem; margin-bottom: 0.5rem; }
.row { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); margin-bottom: 1rem; }

.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
.segmented label { cursor: pointer; }
.segmented input { position: absolute; opacity: 0; }
.segmented span {
  display: block;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
}
.segmented input:checked + span { border-color: var(--primary); box-shadow: inset 0 0 0 1px var(--primary); }
.segmented input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }

.btn {
  font: inherit;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.primary { background: var(--primary); color: var(--primary-text); }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn.danger { background: transparent; border-color: var(--err-text); color: var(--err-text); }
.btn.icon { padding: 0; width: 36px; color: var(--muted); background: transparent; border-color: var(--border); }
.actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }

.alert { border-radius: 8px; padding: 0.65rem 0.8rem; margin-bottom: 1rem; }
.alert.ok { background: var(--ok-bg); color: var(--ok-text); }
.alert.warn { background: var(--warn-bg); color: var(--warn-text); }
.alert.error { background: var(--err-bg); color: var(--err-text); }
.alert.info { background: var(--info-bg); color: var(--info-text); }

.badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.badge.PENDING { background: var(--info-bg); color: var(--info-text); }
.badge.CONFIRMED { background: var(--ok-bg); color: var(--ok-text); }
.badge.CANCELLED, .badge.EXPIRED { background: var(--surface-2); color: var(--muted); }
.badge.CITO { background: var(--err-bg); color: var(--err-text); }
.badge.REGULAR { background: var(--surface-2); color: var(--muted); }
.badge.cold { background: var(--info-bg); color: var(--cold); }

.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; margin: 1rem 0; }
.metric { background: var(--surface-2); border-radius: 8px; padding: 0.6rem 0.75rem; }
.metric b { display: block; font-size: 1.2rem; white-space: nowrap; }
.metric small { margin: 0; }

.table-wrap { overflow-x: auto; }
.table-wrap .table { min-width: 560px; }
.table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.table th, .table td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { color: var(--muted); font-weight: 600; font-size: 0.8rem; white-space: nowrap; }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
#orders-table tbody tr { cursor: pointer; }
#orders-table tbody tr:hover, #orders-table tbody tr[aria-selected="true"] { background: var(--surface-2); }
.cell-zero { color: var(--muted); }
.cell-reserved { display: block; font-size: 0.75rem; color: var(--info-text); }

.list { margin: 0 0 1rem; padding-left: 1.1rem; }
.list li { margin-bottom: 0.3rem; }
.section-title { margin-top: 1.25rem; }
details summary { cursor: pointer; color: var(--muted); font-weight: 600; margin-top: 1rem; }
.countdown { font-variant-numeric: tabular-nums; font-weight: 700; }
fieldset small { margin-top: 0.35rem; }
.eta-basis { display: block; font-size: 0.75rem; color: var(--muted); white-space: normal; }
.borrowed { font-style: italic; color: var(--muted); }
.baseline { color: var(--muted); opacity: 0.75; }
.legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; font-size: 0.8rem; color: var(--muted); margin: 0.75rem 0 0; }